No problem, we've got 72219584 and 66647632 to multiply
72219584 × 66647632 = 66647632 × (72219584)
+ 66647632 × 4 resulting in 266590528
+ 66647632 × 80 that is equal 5331810560
+ 66647632 × 500 that results in 33323816000
+ 66647632 × 9000 that equals 599828688000
+ 66647632 × 10000 what gives us 666476320000
+ 66647632 × 200000 that is equal 13329526400000
+ 66647632 × 2000000 that equals 133295264000000
+ 66647632 × 70000000 that equals 4665334240000000

= 4813264257625088
